Phrasal Verb: Pick up on

Meaning: Correct someone when they say something wrong

Example: My teacher PICKS UP ON any mistake I make and corrects me.

Meaning: Notice something that most people don't

Example: He's very quick to PICK UP ON new trends.

Meaning: React to something

Example: The government has PICKED UP ON the reports in the media.

Meaning: Comment on something said earlier in a conversation

Example: I'd like to PICK UP ON the point that Jill made.